Neewa was one of the kidnapped children of the Mycona Colony, a group of people who harvest the Infested for survival. Nef Anyo was responsible for her capture. She is a holder of the Triuna, a genetic immunity to the Infested, which is passed down from generation to generation of the Myconian people. However, bearers of the Triuna live a short life due to hybridization with Infested genetics, so the Myconians started a ritual called "The Passing" to transfer the Triuna to another child in order to maintain the Myconian's unique immunity to the Infestation and to preserve their way of life.
To win her back from the Corpus, the Tenno must gamble their Credits in Index matches and challenge Nef Anyo's brokers. The Tenno eventually beat Nef at his own game and is given three choices regarding Neewa's fate:
- [Sun] Cure Her
- Neewa is taken to a relay to be cured, unsure of her future, but as a result she is exiled from the Myconian colony.
- [Moon] Send Her Home
- Neewa returns to the Myconian colony, continuing to serve as the Triuna for as long as she lives.
- [Neutral] Let Her Decide
- Neewa chooses to return to the Myconian colony, where she will become the last Triuna and usher a new tradition for her people, one without sacrifices.